Use Oracle Wrap tool to encrypt your code

Use Oracle Wrap tool to encrypt your code

Oracle provides Wrap tools to encrypt your Package.

However, the encrypted code cannot be decrypted. You need to keep your source code safe.

The following is an example:

1. Source Code

Create or replace function get_rowid
(L_rowid in varchar2)
Return varchar2
Is
Ls_my_rowid varchar2 (200 );
Rowid_type number;
Object_number number;
Relative_fno number;
Block_number number;
Row_number number;
Begin
Dbms_rowid.rowid_info (l_rowid, rowid_type, object_number, relative_fno, block_number, row_number );
Ls_my_rowid: = 'object # is: '| to_char (object_number) | chr (10) |
'Relative _ fno is: '| to_char (relative_fno) | chr (10) |
'Block number is: '| to_char (block_number) | chr (10) |
'Row number is: '| to_char (row_number );
Return ls_my_rowid;
End;
/

2. Code function test

[Oracle @ jumper tools] $ sqlplus scott/tiger

SQL * Plus: Release 9.2.0.4.0-Production on Mon Nov 15 21:56:36 2004

Copyright (c) 1982,200 2, Oracle Corporation. All rights reserved.

Connected:
Oracle9i Enterprise Edition Release 9.2.0.4.0-Production
With the Partitioning option
JServer Release 9.2.0.4.0-Production

SQL> @ f_get_rowid

Function created.

SQL> select rowid from dept where deptno = 10;

ROWID
------------------
AAABiPAABAAAFRSAAA

SQL> select get_rowid ('aaabipaabaaafrsaa') from dual;

GET_ROWID ('aaabipaabaaafrsaa ')
------------------------------------------------------------------
Object # is: 6287
Relative_fno is: 1
Block number is: 21586
Row number is: 0

SQL>!
[Oracle @ jumper tools] $ ls
Ct. SQL ddlt. SQL f_get_rowid. SQL getevent. SQL

3. Use wrap encryption and encrypted code

[Oracle @ jumper tools] $ wrap iname = f_get_rowid. SQL oname = f_get_rowid.plb

PL/SQL Wrapper: Release 9.2.0.4.0-Production on Mon Nov 15 21:59:39 2004

Copyright (c) Oracle Corporation 1993,200 1. All Rights Reserved.

Processing f_get_rowid. SQL to f_get_rowid.plb

[Oracle @ jumper tools] $ cat f_get_rowid.plb
Create or replace function get_rowid wrapped
0
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
Abcd
3
8
9200000
1
4
0
17
2: e:
1 FUNCTION:
1GET_ROWID:
1L_ROWID:
1VARCHAR2:
1 RETURN:
1LS_MY_ROWID:
1200:
1ROWID_TYPE:
1 NUMBER:
1OBJECT_NUMBER:
1RELATIVE_FNO:
1BLOCK_NUMBER:
1ROW_NUMBER:
1DBMS_ROWID:
1ROWID_INFO:
1 Object # is :::
1 |:
1TO_CHAR:
1CHR:
110:
1Relative_fno is :::
1 Block number is :::
1Row number is :::
0

0
0
83
2
0 a0 8d 8f a0 b0 3d b4
: 2 a0 2c 6a a3 a0 51 a5 1c
81 b0 a3 a0 1c 81 b0 a3
A0 1c 81 b0 a3 a0 1c 81
B0 a3 a0 1c 81 b0 a3 a0
1c 81 b0: 2 a0 6b: 6 a0 a5 57
A0 6e 7e: 2 a0 a5 B b4 2e
7e a0 51 a5 B b4 2e 7e
6e b4 2e 7e: 2 a0 a5 B b4
2e 7e a0 51 a5 B b4 2e
7e 6e b4 2e 7e: 2 a0 a5 B
B4 2e 7e a0 51 a5 B b4
2e 7e 6e b4 2e 7e: 2 a0 a5
B b4 2e d: 2 a0 65 b7 a4
B1 11 68 4f 1d 17 b5
83
2
0 3 7 23 1f 1e 2b 1b
30 34 38 3c 59 44 48 4b
4c 54 43 75 64 68 70 40
8d 7c 80 88 63 a9 98 9c
A4 60 c1 b0 b4 bc 97 dd
Cc d0 d8 94 c8 e4 e8 eb
Ef f3 f7 fb ff 103 104 109
10d 112 115 119 11d 11e 120 121
126 129 12d 130 131 133 134
13c 141 142 147 14a 14e 152 153
155 156 15b 15e 162 165 166
169 16e 171 176 177 17c 17f 183
187 188 18a 18b 190 193 197 19a
19b 19d 19e 1a3 1a6 1ab 1ac 1b1
1b4 1b8 1bc 1bd 1bf 1c0 1c5 1c9
1cd 1d1 1d5 1d7 1db 1dd 1e9 1ed
1ef 1f0 1f9
83
2
0 1 a 2 d: 2 2: 2 1 8
: 3 1 e 17 16: 2 e: 2 1: 3 d: 2 1
: 3 10: 2 1: 3 f: 2 1: 3 f: 2 1: 3 d 1
2: 2 d 18 20 2b 39 47 55
: 3 2 11 24 26 2e: 2 26: 2 11 3c
3e 42: 2 3e: 2 11 45 3: 2 11 16
18 20: 2 18: 2 11 2d 2f 33: 2 2f
: 2 11 36 3: 2 11 16 18 20: 2 18
: 2 11 2d 2f 33: 2 2f: 2 11 36 3
: 2 11 16 18 20: 2 18: 2 11: 2 2 9
2: 9 1
83
4
0: 2 1: 5 2: 2 3
: 2 1: 7 5: 5 6: 5 7
: 5 8: 5 9: 5 a: B c
: 11 d e: 2 d: 5 e
: 2 d: 5 e: 2 d e
F: 2 d: 5 f: 2 d
: 5 f: 2 d f 10
: 2 d: 5 10: 3 d: 3 11
: 2 B: 7 1
1fb
4
: 3 0 1: 3 0 2
: A 0 7e 1: 7 0
5: 2 0 3 4
: 3 0 3: 7 0 5
4: 3 0 5: 3 0
4: 3 0 7 9
0 7e 2
: 2 0 B 60 0
9 4: 3 0 7
: 2 0 7 d f
: 6 0 12 10 0
7c 0 6: 6 0
F 94 0 d
9: 3 0 14: 7 0
17 15 0 7c
0 8: 6 0 9
: 3 0 19: 7 0 1c
1a 0 7c 0
A: 6 0 13 c8
0 11 9: 3 0
1e: 7 0 21 1f
0 7c 0 B
: 6 0 9: 3 0 23
: 7 0 26 24 0
7c 0 c: 6 0
E: 3 0 9: 3 0
28: 7 0 2b 29
0 7c 0 d
: 6 0 f: 3 0 2c
2d 0 3: 3 0
8: 3 0 a: 3 0
B: 3 0 c: 3 0
D: 3 0 15 2e
35: 2 0 7a 6
: 3 0 10: 4 0 11
: 2 0 12: 3 0
: 3 0 1c 3a 3c
1e 39 3e: 3 0
11: 2 0 13: 3 0
14: 2 0 21 41
43 23 40 45
: 3 0 11: 2 0 15
: 4 0 26 47 49
: 3 0 11: 2 0 12
: 3 0 B: 3 0 29
4c 4e 2b 4b
50: 3 0 11: 2 0
13: 3 0 14: 2 0
2e 53 55 30
52 57: 3 0 11
: 2 0 16: 4 0 33
59 5b: 3 0 11
: 2 0 12: 3 0 c
: 3 0 36 5e 60
38 5d 62: 3 0
11: 2 0 13: 3 0
14: 2 0 3b 65
67 3d 64 69
: 3 0 11: 2 0 17
: 4 0 40 6b 6d
: 3 0 11: 2 0 12
: 3 0 d: 3 0 43
70 72 45 6f
74: 3 0 37 75
0 7a 5: 3 0
6: 3 0 78: 2 0
7a 48 7d: 3 0
7d 4c 7d 7c
7a 7b: 6 0 7e
: 2 0 2 a 7d
81: 3 0 80 7e
82: 8 0
53
4
: 3 0 1 3 1
6 1 e 1
C 1 13 1
18 1 1d 1
22 1 27 6
2f 30 31 32
33 34 1 3b
2 38 3d 1
42 2 3f 44
2 46 48 1
4d 2 4a 4f
1 54 2 51
56 2 58 5a
1 5f 2 5c
61 1 66 2
63 68 2 6a
6c 1 71 2
6e 73 3 36
76 79 6 11
16 1b 20 25
2a
1
4
0
81
0
1
14
1
8
0 0 0 0 0 0 0
0 0 0 0 0 0 0
0 0 0 0
3 1 0
22 1 0
2 0 1
C 1 0
13 1 0
27 1 0
18 1 0
1d 1 0
0

/

4. Test the encrypted code

[Oracle @ jumper tools] $ exit
Exit

SQL> drop function get_rowid;

Function dropped.

SQL> @ f_get_rowid.plb

Function created.

SQL> select get_rowid ('aaabipaabaaafrsaa') from dual;

GET_ROWID ('aaabipaabaaafrsaa ')
-----------------------------------------------------------------
Object # is: 6287
Relative_fno is: 1
Block number is: 21586
Row number is: 0

SQL>